/Engine/Source/Editor/PropertyEditor/Public/DetailWidgetRow.h
Add a custom action to the row context menu
[FDetailWidgetRow](API\Editor\PropertyEditor\FDetailWidgetRow) & AddCustomContextMenuAction ( const [FUIAction](API\Runtime\Slate\Framework\Commands\FUIAction) & Action, const [FText](API\Runtime\Core\Internationalization\FText) & Name, const [FText](API\Runtime\Core\Internationalization\FText) & Tooltip, const [FSlateIcon](API\Runtime\SlateCore\Textures\FSlateIcon) & SlateIcon )